Hepa Air Filtration If You Buy A House And Eight Weeks Later Find That The House Has Mold Particles Air Born Through Out .?

If you buy a house and eight weeks later find that the house has mold particles air born through out .? - hepa air filtration

The particle is refridge in all our clothes, what's new and the furniture is new. We clean our heating ducts, w / air filtration system installed HEPA filters and UV light. All carpets removed. Do we have a new stage in the House who SNCE us sick the day we see moves?